Clearing mechanism for warpers or similar machines



y 1929- J. A. SKEDGELL 1.719.814

CLEARING MECHANISM FOR WARPERS OR SIMILAR MACHINES Filed Nov. 10, 1926 5 Sheets-Sheet l \nvenfo r. Uohn A.Skedgll byMMkM ATTys.

July 2, 1929. J. A. SKEDGELL CLEARING MECHANISM FOR WARPERS OR SIMIUAR MACHINES Filed Nov. 10, 1925 3 Sheets-Sheet 2 k 'I- ;l lnvenToT.

John A.E5Ked 8H b iwwa MrW ATTys.

July 2, 1929- J. A. SKEDGELL 1.719.814

CLEARING MECHANISM FOR WARFERS OR SIMILAR MACHINES Filed Nov 10 1926 5 Sheets-Sheet 5 Fig.3.

' \nvenTor. John A.Skedge\\ Patented July 2, 1929.

UNITED STATES PATENT OFFICE.

JOHN A. SKEDGELL, OF WEST READING, PENNSYLVANIA, ASSJ EGNO R T0 DBAPEB (301t- IORATION, 0F .EIOPEDALE, MASSACHUSETTS, A CORPORATION OF MAINE;

CLEARING MECHANISM; FOR WARPERS OR SIMILAR MACHINES.

Application filed November 10, 1926. Serial No. 147,404.

This invention relates to pneumatic means for clearing from the sheet of yarns passing through a warper or other similar machine the lint and fly which collect thereon and which would otherwise interfere with the op eration of the machine by clogging the detecting mechanism, the combs or other elements of the machine. The clearing means involves an oscillating conduit into which air is forced and from which it issues in a blast extending transversely of and directed against the yarn sheet.

One object of the invention so to proportion the discharge opening as to give desired predetermined velocities of discharge of the air blast at all points throughout the width of the yarn sheet.

Another object of the invention is to provide means for adjusting about the axis of oscillation the position of the angle through which the discharge opening oscillates thus to control the longitudinal section of the yarn sheet swept and cleared by the air blast.

Another object of the invention is to provide means both for thus adjusting about the axis of oscillation the position of the angle through which the discharge opening oscil lates and also for adjusting the magnitude of this angle, thereby giving complete control of the section of the yarn sheet swept and cleared by the air blast.

These and other objects and features of the invention will appear more fully from the accompanying description and drawings and will. be particularly pointed out in the claims.

The invention applicable to various types of machines, but is particularly useful in con nection with a war-per, and a preferred embodiment thereof is herein illustrated embodied in a familiar type of warper.

As the invention is not particularly concerned with the mechanism of the warper or other machine through which the sheet of yarns is passed, it will only be necessary here to illustrate and describe so much of such a machine as is necessary to a disclosure of the present invention.

In the drawings:

Fig. 1 is a side elevation of a portion of a beam warper with a preferred form of the present invention embodied therein. and with the blower and motor omitted;

Fig. 2 is a front elevation partially broken away of a portion of the construction shown in Fig. 1.

port the usual warp beam 3 upon which the sheet of yarns l are wound after passing through the machine from the usual creels. The main shaft 5 extends transversely of the warper between the side frames and is shownas driven by means of fast and loose pulleys 6 thereon. One of the usual gears 7 is shown 011 this main shaft; v i

The sheet of yarns as they come from the creels pass through or under the control of various instrumenta-lities. Those illustrated are a guide bar 8, a rear comb 9, the two fixed rolls lOwith the intermediate vertically 1novable roll 11. constituting the tension mechanism, thetwo banks of detectors 12 and 18., the front comb 14; and the guide roll 15. All of these instrumentalities and their functions are well known and familiar to those skilled in the art and need no further description. Lint and fly collecting on these various instrumentalities and on the various yarns in terfere with the proper operation and functioning of the machine and especially with the operation of the. detectors and the. passage of the yarns through the combs. The object of a clearing mechanism is to remove this lint and fly so as to keep these various instrumentalities and the yarn clean and insure at all times the proper functioning of the machine. In this invention this result is secured by an air blast which sweeps back and forth over the instrumentalities subject to the collection of lint and fly and over the yarn sheet and longitudinally thereof and throughout the width thereof.

In the construction illustrated, the frame 2 has mounted thereon a bracket 16, to the top of which is firmly bolted a centrifugal blower 17 shown as operated by an electric motor 18 also secured to the bracket. These parts are thus held in fixed position. The discharge end 19 of the blower is cylindrical with its axis located above the side frame 2 and extending in a. direction transversely of and above the yarn sheet.

A bracket 20 is secured to the side frame 1 and at its upper end presents a. journal bearing21 in which is mounted a shaft 22. This shaft at its inner end has rigidly secured thereto a cylindrical head 23 fitting in and secured to one 'endof a cylindrical pipe or conduit 24, the otherend of which is rotatably fitted within the cylindrical end 19 of the blower. The axis of this conduit extends transversely of, parallel to, and above the yarn sheet. The conduit 24 is provided with a discharge opening 25 extending longitudinally thereof and in the form of a slot. The width of this slot 'is varied as des iredand so as to give desired predetermined velocities of discharge at all points throughout the width of the sheet, according to the required conditions. In the form illustrated in Fig. 4, the particular variation in width shown is one of progressing increase in width beginning at the blower end and extending to the opposite end, but this particular form is merely illustrative, as any desired variation in width may be given the slot, according to the conditions. It will thus be seen that the velocity of the air blast issuing'from the discharge opening is under complete control.

The air blast is swept longitudinally back and forth overthe yarn sheet throughout the sections required to effect the desired clearing operationby oscillating the conduit 24 on its axis and by adjusting either or both the magnitude of the angle through which the discharge opening oscillates and the posit-ion of this angle about or relatively to the axis ofoscilla-tion. A simple and effective means for securing these results is illustrated.

The shaft 22 of the conduit is provided withf'a pinion 26 having the hub 27 and roftarily adjustable by means'of the set screw 28 on the shaft. This pinion 26 meshes with a gear 29 mounted to oscillate on a stub shaft 30' carried by the bracket 20. An arm 31 extending from the hub of the gear and secured to the gear by a bolt 32 extends down *ardly and is provided with a slot 33 in its lower end. A link 34 is pivoted at one end on a bolt 35 adjustable in the slot 33 and at its otherend on a pin 36 positionable in either one of a series ofholes 37 in a crank disk 38 mounted eccentrically on a'vertical shaft 39.

' The shaft 39 is journalled in bearing brackets 40 and 41 secured to the side frame l and at its lower end is provided with a worm wheel 42 meshing with a worm 43 on the shaft 44 of a gear 45 which is driven from the gear 7 on the main shaft.

It will thus be seen that in the construction illustrated the train of connections described extending from the main shaft 5 to the shaft 22 serves to effect, during the operation of the machine, an oscillatory movement of the conduit 24 about its longitudinal axis, thus causing the air blast directed through the dis charge opening 25 to sweep back and forth longitudinally of the yarn sheet.

It will also be seen that the magnitude of the angle through which the discharge opening thus oscillates may be adjusted as desired by either or both of the adjustmcnls provided, first, of the bolt 35 in the slot 233 and, second, of the pin 36 in the apertures 37.

It will also be seen that the position of this angle, regardless of its magnitude, may be adjusted about the axis of oscillation by means of the set screw 28 by which the retary position of the shaft 22 in the pinion 26 is determined.

These two features, together with the \'a riation of the width of the slot 25, enable the clearing operation to be controlled completely, first, as to the force and distribution o l. the air blast widthwise of the yarn sheet, second, as to the longitudinal section of the yarn sheet swept by the blast, and third, as to the position of this section longitmlinally of the yarn sheet.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent, is:

I 1. Clearing mechanism for arpers or similar machines through which a sheet of yarns is passed comprising a conduit mounted to oscillate on an axis extending trans versely of, and parallel to, the yarn sheet, means for forcing air into the conduit, (he said conduit having a longitudinal discharge opening, the width of which is so proportioned as to give desired predetermined velocities of discharge at all points throughout the width of the yarn sheet, and means for oscillating the conduit whereby the air blast is swept back and forth longitudinally of the yarn sheet.

2. Clearing mechanism for warpers or similar machines having the construction dclined in claim 1, together with means for adjusting about the axis of oscillation the position of the angle through which the discharge opening oscillates. 3. Clearing mechanism for warpers or similar machines through which a sheet of yarns is passed comprising a conduit mounted to oscillate on an axis extending transversely of, and parallel to, the yarn sheet, means for forcing air into the conduit, means for oscillating the conduit to cause the air blast to be swept back and forth longitudinally of the yarn sheet, and means for adjusting about the axis of oscillation the position of the angle through which the discharge opening oscillates.

4. Clearing mechanism for warpers or similar machines through which a sheet of yarns is passed, comprising a conduit mounted to-oscillate on an axis extending transversely of, and parallel to, the yarn sheet and having a longitudinal slot in its wall parallel to said axis, means for forcing air into the conduit, and causing it to issue from said slot in a blast extending transversely of, and directed against the yarn sheet, the Width of said slot being proportioned throughout its length to give desired predetermined velocities of discharge at all points throngl'iout the width of the yarn sheet, means for oscillating the conduit on its axis, 111CL11S for adjusting the magnitude of; the angle of oscillation, and means for adjusting the position 10 of said angle about the axis of oscillation whereby a blast sheet of air oil? predetermined proportions may be swept hack and forth over any desired transverse section of the yarn sheet.

In testimony whereof, I have signed my name to this specification.

JOHN A. SKEDGELL. 

